Patents by Inventor Tadahiro Motomura

Tadahiro Motomura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11819227
    Abstract: Provided are a treatment method, a separation method, and a filter assembly capable of preventing so-called “Blue Toe syndrome” which is so-called cholesterol crystal embolism of which a fat-soluble compound such as cholesterol crystals generated during dilation of a stenosed site causes clogging in glomeruli of peripheral capillaries or kidney, acute renal failure, and the like. Cholesterol crystals generated from plaque during use of a balloon catheter are taken out of the body and removed using a centrifugal separation device or a filter, and usable living cells are returned to the body to reduce blood transfusion and reduce cholesterol crystal embolism.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: November 21, 2023
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Yoshitaka Itou, Shinya Matsumoto, Shota Ishii, Tadahiro Motomura, Yoshiyuki Saito, Aiko Sakimoto, Takenari Ito, Haruhiko Takahashi, Tetsuya Fukuoka
  • Publication number: 20200289135
    Abstract: Provided are a treatment method, a separation method, and a filter assembly capable of preventing so-called “Blue Toe syndrome” which is so-called cholesterol crystal embolism of which a fat-soluble compound such as cholesterol crystals generated during dilation of a stenosed site causes clogging in glomeruli of peripheral capillaries or kidney, acute renal failure, and the like. Cholesterol crystals generated from plaque during use of a balloon catheter are taken out of the body and removed using a centrifugal separation device or a filter, and usable living cells are returned to the body to reduce blood transfusion and reduce cholesterol crystal embolism.
    Type: Application
    Filed: March 12, 2020
    Publication date: September 17, 2020
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Yoshitaka ITOU, Shinya MATSUMOTO, Shota ISHII, Tadahiro MOTOMURA, Yoshiyuki SAITO, Aiko SAKIMOTO, Takenari ITO, Haruhiko TAKAHASHI, Tetsuya FUKUOKA
  • Patent number: 6251276
    Abstract: There is provided a leukocyte eliminating filter capable of exhibiting an excellent performance of eliminating leukocyte and platelet, which can be obtained through a simple process comprising the steps of coating a substrate constituting the filter with a polymer having a chemical structure represented by any one of the following formulas (I) and (II), and heat-drying the coated polymer: wherein R1, R3, R4, R5R6 and R7 may be the same or different and are individually hydrogen atom or an alkyl group having 1 to 4 carbon atoms; R2 is CONH2 or COOH; R8 is an alkyl group having 1 to 12 carbon atoms; and x is an integer of 3 or 4.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: June 26, 2001
    Assignee: Terumo Kabushiki Kaisha
    Inventor: Tadahiro Motomura
  • Patent number: 5667684
    Abstract: A material for removing human immunodeficiency virus (HIV) and its related substances from blood, plasma, or other body fluids is provided. The material comprises a porous substrate on which sulfuric group substantially in the form of a salt is immobilized. A convenient removal of HIV and its related substances at a high efficiency is enabled by the use of the material.
    Type: Grant
    Filed: April 26, 1995
    Date of Patent: September 16, 1997
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Tadahiro Motomura, Yuko Miyashita, Takashi Ohwada, Makoto Onishi, Naoki Yamamoto